1022210011221 has 32 divisors (see below), whose sum is σ = 1608572928000. Its totient is φ = 565040931840.

The previous prime is 1022210011217. The next prime is 1022210011279. The reversal of 1022210011221 is 1221100122201.

It is not a de Polignac number, because 1022210011221 - 2² = 1022210011217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022210011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022210011201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1234485 + ... + 1889013.

It is an arithmetic number, because the mean of its divisors is an integer number (50267904000).

Almost surely, 2^{1022210011221} is an apocalyptic number.

It is an amenable number.

1022210011221 is a deficient number, since it is larger than the sum of its proper divisors (586362916779).

1022210011221 is a wasteful number, since it uses less digits than its factorization.

1022210011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656969.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1022210011221 its reverse (1221100122201), we get a palindrome (2243310133422).

The spelling of 1022210011221 in words is "one trillion, twenty-two billion, two hundred ten million, eleven thousand, two hundred twenty-one".